CN108117214A - Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment - Google Patents
Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment Download PDFInfo
- Publication number
- CN108117214A CN108117214A CN201711420885.0A CN201711420885A CN108117214A CN 108117214 A CN108117214 A CN 108117214A CN 201711420885 A CN201711420885 A CN 201711420885A CN 108117214 A CN108117214 A CN 108117214A
- Authority
- CN
- China
- Prior art keywords
- water
- evaporator
- waste water
- tubulation
- xun huan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/04—Evaporators with horizontal tubes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of processing method and equipment of shale gas exploitation fracturing fluid add in flocculant first into waste liquid and carry out coagulation pretreatment and pass through filter press press filtration, realize separation of solid and liquid；Filter press is filtered out into water by Fenton oxidation further by the hardly degraded organic substance oxidative degradation in waste water；Using static mixer, NaOH is added into the waste water after Fenton reactions in pipeline, precipitates the Fe in water3+Ion, solution carry out separation of solid and liquid after sedimentation basin precipitates by filter press, and filtrate is filtered by sandfiltration pot；The waste water after sandfiltration pot filters finally is pumped into Xun Huan column tube evaporimeter and is evaporated concentration, the processing water after concentration carries out outward transport processing.Sludge caused by each link carries out sanitary landfills.The each process section of the present invention is all linked with one another, and technique is complete, extensive to the applicability of water inlet.Flow is simple, energy-efficient simultaneously, and operating cost is low, and system structure is compact, and the wastewater flow rate of outward transport processing can be greatly reduced.
Description
Technical field
The present invention relates to the places of industrial wastewater pollution process field, the more particularly to minimizing of shale gas exploitation fracturing fluid
Science and engineering skill.
Background technology
Shale gas exploitation fracturing fluid be generated during shale gas exploitation one kind " it is special work (work) industry give up
Water ".The fracturing waste liquor that China's shale gas exploitation is discharged every year is up to 1,000,000 tons or so.It is counted with closing, every mouthful of shale gas production
Well fracturing fluid about 30~50m3/d.Its component is sufficiently complex, mainly contains that oils, various guanidine glue, formaldehyde etc. are a variety of to be had
The many kinds of substance such as all kinds of chemical treatments such as machine additive, sulfate, bacterium.Therefore the fracturing fluid of shale gas has height
The features such as COD value, high salinity, high stability, high viscosity, penetrating odor are strong, difficult degradation, to the very harmful of environment.This
After a little substances enter environment, after underground water and surface water environment, it will feedwater, native environmental system bring persistence
Pollution, production and long term growth to shale gas cause immeasurable loss.Therefore, fracturing fluid is treated as
Restrict one of critical environments problem in shale gas development process.
However, being limited by field condition and technical merit, the treatment technology of China's shale gas fracturing waste liquor is still immature, very
To some it is unprocessed just directly by waste liquid re-injection or be discharged into environment, this is further exacerbated at shale gas fracturing waste liquor
The urgency of reason.At present, common fracturing waste liquor treatment process mainly has " Fenton oxidation-flocculation-SBR Combined Treatments ", " wadding
Solidifying-oil removal-photochemical catalytic oxidation ", " Fenton oxidation-flocculation reinjection technology ", " flocculation-oil removal-precipitation-twin-stage oxygen
Change ", " de- steady-filtering-O of chemistry3/H2O2- composite catalytic oxidation-deep oxidation " etc..Said combination technique can be realized
The mutual supplement with each other's advantages of single technology improves treatment effect, reduces consumption of chemical agent, reduces cost etc..But these techniques concentrate on
Processing for suspended material in waste water and organic matter is not obvious for the treatment effect of salt in waste water.Again due to shale gas
Salt content is very high in fracturing waste liquor, therefore, difficult for one that is treated as the processing of shale gas fracturing waste liquor of salt in waste liquid
Topic.And these treatment process rest on the experimental study stage mostly, and Practical Project is with less, even if a small number of applications, processing
Reinjected water is transported outward afterwards or discharge water is still larger, and outward transport, re-injection cost is caused to remain high.
With domestic increasingly serious environmental problem, generated fracturing waste liquor during shale gas exploitation is carried out high
Effect, inexpensive decrement treatment become the active demand of its development.
The content of the invention
It is an object of the invention to be directed to the problem of existing shale gas exploitation fracturing fluid treating capacity is big, one kind is provided
The shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing efficient, easy to operate, easy to remove, processing cost is low
Processing method and equipment, have the characteristics that complicated component, variability and dispersiveness for fracturing fluid in itself, and emphasis is realized
Waste liquid minimizing, to solve the problems, such as China's shale gas exploitation industry fracturing fluid processing.
The technical solution adopted by the present invention is as follows：
A kind of shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method, including following several steps
Suddenly：
1st, coagulating sedimentation pre-processes：Fracturing outlet liquid is pumped into coagulation pretreatment tank, with chemicals feeder to fracturing outlet liquid
Sodium carbonate (Na is added in waste water2CO3) and aluminium system aluminium polychloride (PAC) progress coagulation pretreatment, make Ca2+、Mg2+Ion is formed
Precipitation, while remove the impurity such as the turbidity in waste water, suspended matter, fracturing fluid residual components and crude oil.The coagulation pretreatment
When, the hydraulic detention time of flocculation process is 15 ± 5min.If the organic matter of fracturing outlet liquid, SS and other material concentration mistakes
Height, it is gluey to be that waste liquid is presented, then can first carry out filter press press filtration, realize separation of solid and liquid, and filtering out waste water, to carry out coagulating sedimentation again pre-
Processing.
2nd, Fenton deep oxidations：Water outlet realizes separation of solid and liquid, filters out waste water certainly through filter press press filtration after coagulation pretreatment
Stream adjusts tank into water inlet, then is pumped into Fenton retort, H2O2In Fe3+Under the catalytic action of ion by Fenton oxidation into
One step degrades the hardly degraded organic substance deep oxidation in waste water, and the reaction time is 1.25 ± 0.25h.
3rd, precipitation filtering：Waste water after Fenton oxidation is flowed into sedimentation basin, by being mounted on pipe in flow process
Static mixer in road adds the Fe in NaOH precipitation water into the waste water after Fenton reactions3+Ion, solution is through sedimentation basin
Separation of solid and liquid is carried out by filter press again after precipitation, filtrate flows into sandfiltration pot filtering.
4th, it is concentrated by evaporation：The waste water gone out after sandfiltration pot is pumped into Xun Huan tubulation atmospheric evaporator and is evaporated concentration, treats
Cheng Wei：Waste water is first pumped into the spray system in evaporator through water circulating pump, and abundant mist is equably sprayed into tower by water distributor
The waste water of change, atomization waste water flow through the heat cycles tubulation for being passed through high-temperature vapour, are filled between heat cycles tubulation under the effect of gravity
Honeycomb padding is filled with, forms thin film shape current, increases heat exchange area and heat-exchange time, the air of dry high break value exists
Entered under the action of high-power blower by bottom in tower, and control evaporator outlet wind speed waste water flows through filler in 12-20m/s
The moisture film formed during surface and swiftly flowing air carry out heat exchange rapid vaporization and enter gas phase into vapor, realize waste water
It is concentrated by evaporation, air provides a part of heat needed for waste water evaporation, and another part heat is heated by cycling tubulation and provided, afterwards
The air of the low break value of high humility is extracted out from top of tower；Remaining waste water falls back to the cycling header tank of base of evaporator, then by following
Ring water pump is sent into spray system circulating and evaporating；The water droplet carried secretly in air is stopped by the dehydrator in tower, falls after rise into heat cycles
The reheated evaporation in tubulation surface.
5th, the waste water after concentrating is excluded via base of evaporator pipeline, outward transport processing.Sludge after press filtration carries out outward transport and defends
Raw landfill disposal.
Wherein, it is 28%-30% in the PAC contents of coagulating sedimentation pretreatment stage, the hardness of water outlet is no more than 450mg/
L, coagulating sedimentation are that pH value is 9, and flocculation basin hydraulic detention time is 15 ± 5min.
In Fenton oxidation stage H2O2/ COD mass ratio=7.1, reaction time are 1.25 ± 0.25h.
In precipitation filtration stage sandfiltration pot filtering, hydraulic detention time is 1 ± 0.5h, and pH value should be 9.
The present invention proposes to realize the shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing of the above method simultaneously
Processing equipment, including being arranged successively by the coagulation filling of pipeline connection, Fenton retort, filter press, sedimentation basin, sandfiltration pot, Xun Huan
Pipe atmospheric evaporator, steam boiler, water softening plant and softening water tank；It further includes the sodium carbonate being connected with coagulation filling and PAC adds
What medicine device, the hydrogen peroxide being connected with Fenton retort and ferric sulfate and sulfuric acid chemicals dosing plant and static mixer were connected
Sodium hydroxide chemicals dosing plant, static mixer, suction pump and respective valves are set on pipeline.
Equipment employs the cycling tubulation atmospheric evaporator of special construction, for square or circular tower structure, evaporator
Tower in wind turbine, water collection device, water distributor, cycle tube still heater, packing area and cycle header tank are set, set outside tower and draw water
Pump.
Wind turbine is axial-flow type high-power blower, is located at evaporator top exit, wind turbine model and power are by required evaporation
Air quantity determines, but the power of wind turbine must assure that evaporator outlet wind speed reaches 12-20m/s.
Water distributor is located at evaporator top, and by being in being formed with water conduit tube and branch pipe and nozzle for dendroid arrangement, nozzle is adopted
With big flow atomizer, moisturizing pipe diameter and nozzle specification are selected according to design water, and nozzle quantity and arrangement are by cloth
Water flow and single-nozzle spray flow determine.
Water collection device is mounted between water distributor and wind turbine, is corrosion-resistant material, is made as waveform.
It cycles in the packing area that tube still heater is mounted in the middle part of evaporator, using band fin anti-corrosion and high temperature resistant, high pressure
Stainless steel or copper tube make, and use shape as disc or U-typed coil arrangement, it is ensured that and the fluid of big flow suppresses Xun Huan,
Tube still heater and tower external heat source unicom are cycled, the length and the number of plies for cycling tubulation are calculated by required heat exchange amount.
The filler of packing area is made of heat safe anti-corrosion material, honeycomb structure, is filled in Xun Huan tubulation heating
Between device coil pipe, cycling tube still heater is surrounded.
Evaporator lower part sets air inlet, and bottom sets cycling header tank.
It is encapsulated outside said structure using anti-corrosion material, forms Xun Huan tubulation atmospheric evaporator unit casing.
The features of the present invention is as follows：
1st, the method for the present invention is used as cycle tubulation using chemical coagulation-Fenton deep oxidations-physics press filtration combination technique
It is concentrated by evaporation pre-treatment step.Water outlet is directly carried out after filter press press filtration at follow-up Fenton deep oxidations after coagulation pretreatment
Reason.Water outlet after deep oxidation is recirculated back to belt filter press press filtration after precipitation.This technological process is simple, passes through chemical coagulation
The processing of+Fenton deep oxidations can effectively remove most of organic pollutant and suspended solid in waste water, through press filtration
It realizes separation of solid and liquid, the evaporation efficiency of waste water can be effectively improved, prevent fouling of evaporator.
2nd, the special atmospheric evaporator for employing the column tube evaporimeter containing cycle of the present invention is as evaporation concentration equipment, to materialization
Processed waste water carries out low-temperature evaporation concentration, and the outer freight volume of waste water is greatly reduced, can effectively reduce processing cost.The present invention's is big
The evaporator or cooling tower that gas evaporator and the prior art often use are structurally different, also there is essential distinction in principle.It is logical
Normal evaporator or cooling tower is to be entered by the air of low break value in tower, and the processing current higher with temperature carry out heat exchange
Afterwards, the hot wind of high break value is extracted out from top, achievees the purpose that cooling processing water water temperature；And the atmospheric evaporator of the present invention is to pass through
The air of dry higher enthalpy value enters under high-power shaft flow fan effect in tower, and gas transfers heat to useless in tower
Water provides the partial heat needed for waste water evaporation, and the air of low enthalpy value high humility is extracted out by wind turbine afterwards, and Xun Huan is improved with this
The evaporation capacity of waste water, achievees the purpose that concentration.Heating can be greatly reduced in Xun Huan tubulation atmospheric evaporator compared with conventional evaporator
Energy consumption.Compared with carrying out subsequent processing with bioanalysis, for treatment facility is smaller, treatment process is simple, operation the advantages of this method
Cost reduction is wider to the influent quality scope of application.During with Biochemical method, the waste liquid of high salinity may be to microorganism
Growth has inhibitory action, influences treatment effect, and evaporation and concentration rule is used to be avoided that this problem.And it is evaporated one side of processing
Waste water can be carried out minimizing by face, effectively reduce processing cost, and the outer freight volume of waste water is greatly reduced；On the other hand, by shale gas
Fracturing waste liquor concentrates, and is conducive to that the metallic salt recycling in waste liquid can effectively be solved shale when subsequently outward transport is handled
The problem of salt content is higher in gas fracturing waste liquor, by the metallic salt recycling in waste liquid.
This atmospheric evaporator has several apparent structure innovations, and concrete analysis is as follows：
(1) this evaporator has to using high-power blower, i.e., to ensure that evaporator outlet wind speed reaches 12-20m/s, this
It is because this evaporator purpose to be achieved is：Waste water evaporates required energy and is not all of being provided by heating tubulation, but
Design heating tubulation only provides part evaporation institute calorific requirement, and a large amount of enthalpies that another part is pumped by high-power blower are higher
Air provides.I.e. in atmospheric evaporator, a required heat part for waste liquid evaporation is conducted heat by air to be provided, and a part is by following
The heating of circular row pipe provides.Since liquid evaporation speed is related with liquid surface air velocity, the flowing velocity of moisture film liquid level air
It is bigger, be more conducive to accelerate evaporation rate, therefore by high-power blower, using the advantage that its wind speed is high, gas flux is big, add
Keen draft leads to, and improves the flowing velocity of water surface air, the water vapour molecule of effusion is made to spread rapidly, maintains evaporation and diffusion power
For constant, do not make its reduction, gas flow and gas flow rate in evaporator can be improved, so as to improve evaporation efficiency, can so save
Heating energy consumption is saved, the energy consumption that total energy consumption is heated offer waste water evaporation institute calorific requirement by heating tubulation more entirely is greatly reduced, this essence
It is the innovation in this evaporator principle.
(2) in order to improve the enthalpy of the air of high-power blower suction, the air inlet of evaporator can first pass through evaporator one side
Set into air duct, into air duct in be provided with air dry combustion method pipe, to being heated into the air in evaporator, further improve
The enthalpy of air and air inlet is made to keep drying, improved so as to be conducive to evaporation efficiency inside evaporator.
(3) the cycling tubulation of this evaporator is arranged in packing area rather than arranged apart, when waste water is drenched into packing area
A longer residence time can be obtained, this time can be utilized by circulating-heating tubulation simultaneously, when lengthening the heating to waste water
Between, while packing area surface area is big, heat transfer area increases after waste water forms moisture film, can improve the efficiency of heating surface.
(4) this evaporator does not carry out additional heating first and is steamed to improve to the waste water by water circulating pump promotion circulated sprinkling
Efficiency is sent out, is because if waste water is first heated, waste water temperature can be more much higher than air themperature, and the heat of water can pass to temperature
Relatively low air causes thermal loss, and waste water evaporation process is an endothermic process, and such case appearance can be unfavorable for waste water
Evaporation, the waste water cycle of this evaporator is to be put into using circulating pump Natural Circulation, while by steam heating tubulation in packing area,
The temperature difference between air and waste water will not be caused, so as to reduce unnecessary heat loss.It is carried in addition, atmospheric evaporator is provided with
Air dry combustion method pipe into air duct, the air into evaporator can be heated one step ahead, improve the enthalpy into evaporator air
Value, the air of entrance, which transfers heat to waste water, can be more advantageous to waste water evaporation endothermic.
(5) filler of honeycomb structure and high-temperature resistant anti-corrosive material is employed in this atmospheric evaporator, service life is long, bee
Nest shape structured packing large specific surface area, the contact area that on the one hand can be effectively increased between waste water and air make hydrone escape machine
It can increase, on the other hand, increase heat exchange area, accelerate evaporation rate.
3rd, controlled in present invention operation using continuum micromeehanics by valve, realize waste water in coagulating basin, Fenton oxidation
Continuous operating status between pond, filter press, sandfiltration pot and evaporator, the retardance that intermittent duty is avoided to bring improve operation effect
Rate；
4th, present device is simple, and flow is short, easy to maintain, without construction on site reaction tank and other structure buildings；Make
Use long lifespan；Whole set process flow can realize automation control, greatly reduce personnel depaly；
The treatment process of the present invention is a kind of to handle page using chemical coagulation-physics press filtration-high-efficiency evaporating concentration technique
The physical chemistry combination treatment method and system of rock gas fracturing fluid, method and system using the present invention can be in economy
With technically effective fracturing outlet liquid processing during solving the problems, such as China's shale gas exploitation.
Description of the drawings
Fig. 1 is the shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing treatment process schematic diagram of the present invention.
Fig. 2 is a kind of structure diagram of the Xun Huan tubulation atmospheric evaporator of concrete structure of the present invention.
Fig. 3 is the structure diagram of the Xun Huan tubulation atmospheric evaporator of another concrete structure of the invention.
In figure, 1-coagulation fills；2-Fenton retort；3-filter press；4-sedimentation basin；5-sandfiltration pot；6-hydrogen-oxygen
Change sodium chemicals dosing plant；7-sodium carbonate and PAC chemicals dosing plants；8-hydrogen peroxide, ferric sulfate and sulfuric acid chemicals dosing plant；9-Xun Huan row
Pipe atmospheric evaporator；10-static mixer；11-suction pump；901-axial flow blower；902-shell；903-water collection device；
904-water distributor；905-nozzle；906-Xun Huan tubular heat exchanger；907-filler；908-air-inlet grille；909-flow
Meter；910-water circulating pump；911-make-up cooling water case；912-automatic water replenishing device；913-discharge outlet；914-pedestal；915—
Pressure gauge；916-observation window；917-air inlet tube stent；918-into air duct；919-air dry combustion method pipe.
Specific embodiment
The present invention is described further below in conjunction with attached drawing
Refering to attached drawing 1, shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing proposed by the present invention is set
It is standby to include filling 1, Fenton retort 2, filter press 3, sedimentation basin 4, sandfiltration pot 5, Xun Huan tubulation by the coagulation of pipeline connection successively
Evaporator 9, the sodium carbonate being connected with coagulation filling and PAC chemicals dosing plants 7, hydrogen peroxide, the ferric sulfate being connected with Fenton retort
Sodium hydroxide chemicals dosing plant 6, static mixer 10, the suction pump 11 being connected with sulfuric acid chemicals dosing plant 8, with static mixer,
Respective valves are set on pipeline.
Referring to Fig. 2, the shell 902 of Xun Huan tubulation atmospheric evaporator 9 is square-column-shaped tower structure, and axial flow blower is set in tower
901st, water collection device 903, water distributor 904, Xun Huan tube still heater 906, packed bed 907 and Xun Huan header tank 911, tower set pumping outside
Water pump 910.
Wherein, axial flow blower 901 is located at the top of evaporator, is axial-flow type high-power blower, and power of fan needs to ensure to steam
Hair device air outlet velocity reaches 12-20m/s.
Water distributor 904 is located at evaporator top, by being in being formed with water conduit tube and branch pipe and nozzle for dendroid arrangement, nozzle
Using big flow atomizer, moisturizing pipe diameter and nozzle specification are selected according to design water, nozzle quantity and arrangement by
Cloth water flow and single-nozzle spray flow determine.
Water collection device 903 is mounted between water distributor 904 and axial flow blower 901, is corrosion-resistant material, is made as waveform.
Cycle tube still heater 906 be mounted on evaporator in the middle part of, using band fin anti-corrosion and high temperature resistant, high pressure stainless steel or
Copper tube makes, and shape is U-typed coil arrangement, and the length and the number of plies for cycling tubulation are calculated by required heat exchange amount, it is ensured that
The fluid of big flow suppresses Xun Huan, and Xun Huan tube still heater comes from steam with 10 unicom of heat source stream boiler outside tower, heat source
Boiler.
Packed bed 907 is made of heat safe anti-corrosion material, honeycomb structure, is filled in Xun Huan tube still heater
Between coil pipe.Evaporation packed bed has wider passages, and crystallization condition is not achieved in entire evaporation process, packed bed will not be caused to block up
Plug is readily disassembled, rinses and regular maintenance.
Air-inlet grille 908 is arranged on the setting of evaporator lower part, and Xun Huan header tank 911 is located at base of evaporator.
More than structural outer is encapsulated using anti-corrosion material, forms Xun Huan tubulation atmospheric evaporator unit casing 902.
Fig. 3 is another structure type of Xun Huan tubulation atmospheric evaporator 9, on the basis of Fig. 2, is added into air duct
918, it is therefore an objective to improve the temperature for the air being pumped into tower.It is connected into air duct 918 with evaporator at evaporator lower inlet, into
Air duct shell is sealed with evaporator shell junction but detachably, disconnected one side is sealed with anti-corrosion material, into air duct by stent
917 supports need to install air-inlet grille simultaneously into air duct top, air dry combustion method pipe 919 is installed into air duct.
Fracturing fluid processing is mainly made of four process flows：
(1) coagulating sedimentation pre-processes：Fracturing outlet liquid is pumped into coagulation pretreatment tank, is returned with chemicals dosing plant 7 to pressure break
Aluminium system's aluminium polychloride (PAC) and sodium carbonate (Na are added in drain waste water2CO3) coagulation pretreatment is carried out, make Ca2+、Mg2+Ion
Precipitation is formed, while removes the impurity such as the turbidity in waste water, suspended matter fracturing fluid residual components, crude oil.The coagulation pretreatment
The hydraulic detention time of flocculation process is 15 ± 5min.
(2) Fenton oxidation：Water outlet is pumped into filter press press filtration using screw pump after coagulation pretreatment, realizes separation of solid and liquid,
Waste water gravity flow is filtered out into Fenton retort, hydrogen peroxide, ferric sulfate, sulphur are added to Fenton retort with chemicals dosing plant 8
Acid controls time into medicine and into dose using valve.H2O2In Fe2+It is further by Fenton oxidation under the catalytic action of ion
Hardly degraded organic substance deep oxidation in waste water is degraded, the reaction time is 1.25 ± 0.25h.
(3) precipitation filtering：Waste water after Fenton oxidation is flowed into sedimentation basin 4, by being mounted in flow process
Static mixer 10 in pipeline adds the Fe in NaOH precipitation water into the waste water after Fenton reactions3+Ion, solution is through heavy
Separation of solid and liquid is carried out by filter press again after the precipitation of shallow lake pond, filtrate flows into sandfiltration pot 5 and filters.
(4) it is concentrated by evaporation：The waste water gone out after sandfiltration pot is pumped into Xun Huan column tube evaporimeter 9 and is evaporated concentration.Waste water is following
The concentration and evaporation processing step of circular row pipe atmospheric evaporator 9 is as follows：
When high-salt wastewater after pretreatment enters atmospheric evaporator, waste water is first pumped into circulating-heating through water circulating pump 910
The spray system 905 of 906 top of tubulation, suitable waste water being fully atomized, mist are equably sprayed by water distributor 904 into tower
Change waste water and flow through heat cycles tubulation 906 under the effect of gravity, honeycomb padding 907 is filled between heat cycles tubulation, formed
Thin film shape current to increase heat exchange area and heat-exchange time, improve heat exchange efficiency.Spent shower water by with air and heating
Rapid vaporization enters gas phase into vapor after Xun Huan tubulation fully exchanges heat, and the vapor after vaporization is taken away by high-power blower 901,
So as to fulfill the evaporation and concentration of waste water.Remaining waste water falls back to the cycling header tank 911 of base of evaporator, then by water circulating pump
910 feeding spray systems 905 recycle.The water droplet carried secretly in air is stopped by water collection device 903, falls after rise and is heated into cycling tubulation
It is passed through in device in heating evaporation.High-temperature vapour is passed into circulating-heating tubulation, high-temperature vapour is entered by coil pipe upper steam entrance
Tubulation is cycled, heat exchange is carried out with the spent shower water outside Xun Huan tubulation pipe and air, liquid is gradually condensed by gaseous state, under
Portion's steam (vapor) outlet outflow, passes back into softening water tank.Meanwhile dry temperature higher air under the action of wind turbine by bottom inlet air
Grid 908 enters evaporator into (Fig. 2) in tower or into air duct 18 (Fig. 3) after the heating of air dry combustion method pipe 919
It forms moisture film when packing area, waste water flow through filler surface and air carries out heat exchange, the relatively low air of high humility temperature is from top
Extraction, a required heat part for waste liquid evaporation is conducted heat by air to be provided, and a part is heated by cycling tubulation and provided.Waste liquid its
Yu Shui is instilled in bottom cycle header tank.The waste water for instilling bottom cycle header tank is pumped into spray system again through water circulating pump, will
Water Xun Huan is got up, and Xun Huan sprinkling waste water improves evaporation efficiency.In evaporator, the ratio of design treatment water and quantity of circulating water is
1:10, evaporation efficiency 50%.
High-power blower is compared with wind turbine used by common evaporator used by this evaporator, difference lies in：Commonly
Steam in tower only there are one drainage, only by wind turbine is aspirated and draws evaporator by the fan action of evaporator；And
This evaporator uses high-power blower, can improve gas flow and gas flow rate in evaporator, and evaporation rate is empty with liquid level surface
Gas velocity is related, and air velocity is bigger, is more conducive to evaporate；And it is also otherwise varied with conventional evaporator in this evaporator principle,
The required energy of conventional evaporator evaporation is substantially all to be provided by heating tubulation, and an energy part needed for the evaporation of this evaporator
It is provided by heating tube, another part is provided by the higher air of enthalpy, can be saved heating energy consumption, therefore is also required to using more powerful
Wind turbine to provide the gas flow of bigger, but more common evaporator is greatly reduced on total energy consumption；Evaporator fan power needs
According to evaporator packing area height, designed rating size determines, depending on actual conditions evaporator outlet wind speed need to be ensured about in 12-
20m/s, exit wind speed when air outlet velocity is much larger than common evaporator operation.In energy consumption, common evaporator often evaporates 1kg water
The quantity of steam being actually needed is about in 1.2-1.6kg, and this evaporator often evaporates the quantity of steam that 1kg water is actually needed and about exists
0.6-0.8kg, this evaporator overall energy consumption are about the 50%-60% of common evaporator overall energy consumption, and specific effect regards live ring
Border temperature, humidity variation have certain fluctuation.
Sichuan Province's shale gas exploitation well fracturing fluid is handled using treatment process of the present invention, processing procedure
In each stage water quality situation be shown in Table 1.
Water analysis table after each phase process of 1 fracturing outlet liquid of table
Raw water COD be 565mg/L, hardness 3710mg/L, total dissolved solid 1.52 × 104G/L, chloride 1.72 ×
104Mg/L, design treatment amount are 5m3/h.Coagulation pretreatment and belt filter press part, coagulating basin hydraulic detention time are
15min adds aluminium polychloride as 3.75kg/h, Na2CO3Dosage is 18.55kg/h.Fenton oxidation process part,
FeSO4·7H2O dosages are 1.25kg/h, H2O2Dosage is 3.14kg/h, H2SO4Dosage is 0.25g/h, and NaOH is added
It measures as 0.54kg/h, oxidation time 1.25h, the inclined-plate clarifying basin residence time is 3h, and effluent quality is that COD is after processing
72mg/L, hardness 31.32mg/L, total dissolved solid 16.06g/L.Xun Huan column tube evaporimeter is evaporated concentration portion
Point, the ratio of liquid waste processing water and quantity of circulating water is 1:10, designed rating 50%.
Claims (10)
1. a kind of shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method, it is characterised in that：The place
The step of reason method, includes：
(1) coagulating sedimentation pre-processes：Fracturing outlet liquid is pumped into coagulation pretreatment tank, carbon is added in into fracturing outlet liquid waste water
Sour sodium (Na2CO3) and aluminium system aluminium polychloride (PAC) progress coagulation pretreatment, make Ca2+、Mg2+Ion forms precipitation, goes simultaneously
Except impurity such as turbidity, suspended matter, fracturing fluid residual components and the crude oil in waste water；
(2) Fenton oxidation：By water outlet after coagulation pretreatment through filter press press filtration, separation of solid and liquid is carried out, waste water is filtered out and is pumped into
Fenton retort, H2O2In Fe2+It is by Fenton oxidation that the hardly degraded organic substance in waste water is deep under the catalytic action of ion
Oxidative degradation is spent, the reaction time is 1.25 ± 0.25h；
(3) precipitation filtering：Waste water after Fenton oxidation is flowed into sedimentation basin, while NaOH precipitation water is added in waste water
In Fe3+ ions, solution carries out separation of solid and liquid again by filter press after precipitation, and filtrate flows into sandfiltration pot filtering；
(4) it is concentrated by evaporation：Waste water after filtering is pumped into Xun Huan tubulation atmospheric evaporator and is evaporated concentration,
Waste water is first pumped into the spray system in evaporator through water circulating pump, and fully atomization is equably sprayed into tower by water distributor
Waste water, atomization waste water flow through the heat cycles tubulation for being passed through high-temperature vapour under the effect of gravity, filled between heat cycles tubulation
There is honeycomb padding, form thin film shape current, increase heat exchange area and heat-exchange time, the air of dry high break value is big
Entered under the action of power Fan by bottom in tower, and control evaporator outlet wind speed waste water flows through filler table in 12-20m/s
The moisture film formed during face and swiftly flowing air carry out heat exchange rapid vaporization and enter gas phase into vapor, realize the steaming of waste water
Hair concentration, air provide a part of heat needed for waste water evaporation, and another part heat is heated by cycling tubulation and provided, Zhi Hougao
The air of the low break value of humidity is extracted out from top of tower；Remaining waste water falls back to the cycling header tank of base of evaporator, then by cycling
Water pump is sent into spray system circulating and evaporating；The water droplet carried secretly in air is stopped by the dehydrator in tower, falls after rise and is arranged into heat cycles
The reheated evaporation of pipe surface；
(5) waste water after concentrating is excluded via base of evaporator pipeline, outward transport processing, and the sludge after press filtration carries out outward transport health and fills out
Bury processing.
2. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method according to claim 1,
It is characterized in that：It is 28%-30% in the PAC contents of coagulating sedimentation pretreatment stage, the hardness of water outlet is no more than 450mg/L, mixes
Retrogradation shallow lake pH value is 9, and flocculation basin hydraulic detention time is 15 ± 5min；
3. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method according to claim 1,
It is characterized in that：If the organic matter of fracturing outlet liquid, SS and other material concentrations are excessively high, waste liquid are presented gluey, then first carry out
Filter press press filtration realizes separation of solid and liquid, filters out waste water and carry out coagulating sedimentation pretreatment again.
4. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method according to claim 1,
It is characterized in that：In Fenton oxidation stage H2O2/ COD mass ratio=7.1, reaction time are 1.25 ± 0.25h.
5. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method as described in claim 1, special
Sign is：In precipitation filtration stage sandfiltration pot filtering, hydraulic detention time is 1 ± 0.5h, and pH value should be 9.
6. realize that the shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing of claim 1 the method is set
It is standby, which is characterized in that including successively by the coagulation filling of pipeline connection, Fenton retort, filter press, sedimentation basin, sandfiltration pot, follow
Circular row pipe atmospheric evaporator, steam boiler, water softening plant and softening water tank；Further include with the coagulation sodium carbonate that is connected of filling and
PAC chemicals dosing plants, the hydrogen peroxide being connected with Fenton retort and ferric sulfate and sulfuric acid chemicals dosing plant and static mixer phase
The sodium hydroxide chemicals dosing plant of connection, static mixer, suction pump and respective valves are set on pipeline；
The Xun Huan tubulation atmospheric evaporator is square or circular tower structure, and the high-power wind of axial-flow type is set in the tower of evaporator
Machine, water collection device, water distributor, Xun Huan tube still heater, packing area and Xun Huan header tank, tower set suction pump outside；The axial-flow type
High-power blower is located at evaporator top exit, and the power of wind turbine need to ensure that evaporator outlet wind speed reaches 12-20m/s；Cloth
Hydrophone is located at evaporator top, and water collection device is mounted between water distributor and axial-flow type high-power blower；It is filler in the middle part of evaporator
Area, the heat safe anti-corrosion material filled with honeycomb structure, Xun Huan tube still heater is arranged in packing area, around by filler
It surrounds, with tower external heat source unicom, the length and the number of plies for cycling tubulation are calculated the Xun Huan tube still heater by required heat exchange amount
It arrives；Evaporator lower part sets air inlet, and base of evaporator sets Xun Huan header tank.
7. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing equipment as claimed in claim 6, special
Sign is：The air inlet is also associated with into air duct, and air dry combustion method pipe is equipped with into air duct, is entered the wind into air duct and evaporator
Mouth is tightly connected and is detachable structure.
8. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing equipment as claimed in claim 6, special
Sign is：The air inlet of evaporator and air inlet into air duct are provided with air-inlet grille.
9. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing equipment as claimed in claim 6, special
Sign is：The water collection device is corrosion-resistant material, is made as waveform.
10. shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing equipment as claimed in claim 6, special
Sign is：The water distributor is by being in being formed with water conduit tube and branch pipe and nozzle for dendroid arrangement, and nozzle uses big flow mist
Change nozzle, nozzle quantity and arrangement are determined by cloth water flow and single-nozzle spray flow；The cycling tube still heater
It is made of band fin anti-corrosion and high temperature resistant, high pressure stainless steel or copper tube, uses shape as disc or U-typed coil pipe knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420885.0A CN108117214B (en) | 2017-12-25 | 2017-12-25 | Shale gas exploitation fracturing flowback waste liquid circulating tube array evaporation reduction treatment method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420885.0A CN108117214B (en) | 2017-12-25 | 2017-12-25 | Shale gas exploitation fracturing flowback waste liquid circulating tube array evaporation reduction treatment method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108117214A true CN108117214A (en) | 2018-06-05 |
| CN108117214B CN108117214B (en) | 2021-02-26 |
Family
ID=62231750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711420885.0A Active CN108117214B (en) | 2017-12-25 | 2017-12-25 | Shale gas exploitation fracturing flowback waste liquid circulating tube array evaporation reduction treatment method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108117214B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902897A (en) * | 2019-11-27 | 2020-03-24 | 成都理工大学 | Deep treatment method for fracturing flowback fluid for shale gas exploitation |
| CN111072213A (en) * | 2019-12-31 | 2020-04-28 | 上海同济建设科技股份有限公司 | Zero-discharge treatment process and device for fractured rock wastewater |
| CN111072202A (en) * | 2019-11-28 | 2020-04-28 | 成都理工大学 | Shale gas exploitation fracturing returns integration equipment of flowing back advanced treatment |
| CN112897787A (en) * | 2021-04-25 | 2021-06-04 | 重庆市涪陵页岩气环保研发与技术服务中心 | Shale gas fracturing flowback water treatment method |
| CN113233679A (en) * | 2021-05-07 | 2021-08-10 | 重庆大学 | Shale gas exploitation wastewater treatment method |
| CN113341711A (en) * | 2021-05-24 | 2021-09-03 | 天津大学 | Intelligent circulation distribution control system for earth surface and underground multiple water sources |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201244370Y (en) * | 2008-08-07 | 2009-05-27 | 苏州市兴科现代中药工艺装备开发有限公司 | Plate-type free falling film vacuum concentrator |
| CN102786186A (en) * | 2012-08-09 | 2012-11-21 | 杨德敏 | Shale gas fracturing flow-back waste liquid treatment method |
| CN202605748U (en) * | 2012-03-15 | 2012-12-19 | 北京纬纶华业环保科技股份有限公司 | Cycling concentration plant |
| CN104623916A (en) * | 2013-11-08 | 2015-05-20 | 高子羊 | Liquid extract condensing device in traditional Chinese medicine preparation |
| US20150166384A1 (en) * | 2013-12-16 | 2015-06-18 | William Olen Fortner | Methods, systems, and apparatus for disposal of oilfield waste water |
| CN106315903A (en) * | 2015-06-15 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Method for processing shale gas fracturing flowback fluid |
| CN106746033A (en) * | 2017-02-28 | 2017-05-31 | 苏州华辰净化股份有限公司 | A kind of handling process of the shale gas exploitation waste water based on membrane technology |
| CN107308666A (en) * | 2017-08-15 | 2017-11-03 | 广州特种承压设备检测研究院 | Sprinkling falling-film evaporator |
| CN107473304A (en) * | 2017-08-25 | 2017-12-15 | 金川集团股份有限公司 | A kind of device and processing method of metallurgical off-gas acid-making low temperature position waste heat adiabatic evaporation waste acid |
| CN207726911U (en) * | 2017-12-25 | 2018-08-14 | 重庆大学 | A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment |
-
2017
- 2017-12-25 CN CN201711420885.0A patent/CN108117214B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201244370Y (en) * | 2008-08-07 | 2009-05-27 | 苏州市兴科现代中药工艺装备开发有限公司 | Plate-type free falling film vacuum concentrator |
| CN202605748U (en) * | 2012-03-15 | 2012-12-19 | 北京纬纶华业环保科技股份有限公司 | Cycling concentration plant |
| CN102786186A (en) * | 2012-08-09 | 2012-11-21 | 杨德敏 | Shale gas fracturing flow-back waste liquid treatment method |
| CN104623916A (en) * | 2013-11-08 | 2015-05-20 | 高子羊 | Liquid extract condensing device in traditional Chinese medicine preparation |
| US20150166384A1 (en) * | 2013-12-16 | 2015-06-18 | William Olen Fortner | Methods, systems, and apparatus for disposal of oilfield waste water |
| CN106315903A (en) * | 2015-06-15 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Method for processing shale gas fracturing flowback fluid |
| CN106746033A (en) * | 2017-02-28 | 2017-05-31 | 苏州华辰净化股份有限公司 | A kind of handling process of the shale gas exploitation waste water based on membrane technology |
| CN107308666A (en) * | 2017-08-15 | 2017-11-03 | 广州特种承压设备检测研究院 | Sprinkling falling-film evaporator |
| CN107473304A (en) * | 2017-08-25 | 2017-12-15 | 金川集团股份有限公司 | A kind of device and processing method of metallurgical off-gas acid-making low temperature position waste heat adiabatic evaporation waste acid |
| CN207726911U (en) * | 2017-12-25 | 2018-08-14 | 重庆大学 | A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902897A (en) * | 2019-11-27 | 2020-03-24 | 成都理工大学 | Deep treatment method for fracturing flowback fluid for shale gas exploitation |
| CN111072202A (en) * | 2019-11-28 | 2020-04-28 | 成都理工大学 | Shale gas exploitation fracturing returns integration equipment of flowing back advanced treatment |
| CN111072213A (en) * | 2019-12-31 | 2020-04-28 | 上海同济建设科技股份有限公司 | Zero-discharge treatment process and device for fractured rock wastewater |
| CN112897787A (en) * | 2021-04-25 | 2021-06-04 | 重庆市涪陵页岩气环保研发与技术服务中心 | Shale gas fracturing flowback water treatment method |
| CN113233679A (en) * | 2021-05-07 | 2021-08-10 | 重庆大学 | Shale gas exploitation wastewater treatment method |
| CN113341711A (en) * | 2021-05-24 | 2021-09-03 | 天津大学 | Intelligent circulation distribution control system for earth surface and underground multiple water sources |
| CN113341711B (en) * | 2021-05-24 | 2023-09-12 | 天津大学 | Intelligent circulation distribution control system for multiple water sources on earth surface and underground |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108117214B (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108117214A (en) | Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment | |
| CN103880232B (en) | A kind of organic brine waste treatment system and method | |
| CN104828887B (en) | Make the method and system of waste water evaporated and purified treatment using solar energy combined heated | |
| CN108117215A (en) | High-salt wastewater cycles tubulation atmospheric evaporation decrement treatment method and apparatus | |
| CN111392947B (en) | Ammonia water resource utilization process and device | |
| CN107117755A (en) | A kind of high ammonia-nitrogen wastewater processing and ammonia recovery system and its method | |
| CN112093835B (en) | Baffling type supergravity concentration equipment | |
| CN103553166A (en) | Device and method of treating wastewater with high salt content by utilizing waste heat of circulating water | |
| CN102701303A (en) | Liquid-film low-temperature-evaporation zero-emission saline wastewater treatment method | |
| CN207726911U (en) | A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment | |
| CN109020031A (en) | Evaporation concentration system based on thermal compression | |
| CN207845201U (en) | A kind of cycle tubulation atmospheric evaporator | |
| CN209635926U (en) | Falling film evaporation couples absorption refrigeration high-salt sewage processing equipment | |
| CN203295308U (en) | Organic salt-containing waste water treating system | |
| CN107840399A (en) | Rotary evaporator and low-temperature evaporation condensing crystallizing equipment | |
| CN204848322U (en) | High salt solution processing system | |
| CN113735209A (en) | Full-quantification landfill leachate treatment device and process | |
| CN101613166A (en) | Recycling treatment process of high-concentration ammonia nitrogen waste water | |
| CN107792904A (en) | A kind of technique and device of continuous removal of ammonia and nitrogen light component organic matter and salt | |
| CN112225275A (en) | Contain high-efficient evaporation plant of salt organic waste water and system | |
| CN207726912U (en) | A kind of high-salt wastewater cycle tubulation atmospheric evaporation decrement treatment equipment | |
| CN207726909U (en) | A kind of shale gas fracturing fluid vehicle-mounted integral processing equipment | |
| CN104692580A (en) | Novel fermentation-type pharmaceutical wastewater overall treatment system and method | |
| CN204737747U (en) | System for adopt solar energy combination heating to make waste water evaporation purification treatment | |
| CN214192637U (en) | Contain high-efficient evaporation plant of salt organic waste water and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |